An Improved LANDMARC Indoor Localization Algorithm

DUAN Rui-zhen; LI Hai-ning; XU Meng

doi:10.15938/j/jhust.2016.05.016

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An Improved LANDMARC Indoor Localization Algorithm

更新时间：2026-08-31

- An Improved LANDMARC Indoor Localization Algorithm
- Vol. 21, Issue 5, Pages: 86-89(2016)
- 作者机构：
  
  哈尔滨理工大学荣成学院,山东,威海,264300
- 作者简介：
- 基金信息：
- DOI：10.15938/j/jhust.2016.05.016
  CLC： TP391.4
- Published：2016
- 稿件说明：
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DUAN Rui-zhen, LI Hai-ning, XU Meng. An Improved LANDMARC Indoor Localization Algorithm[J]. 2016, 21(5): 86-89.
DOI：

DUAN Rui-zhen, LI Hai-ning, XU Meng. An Improved LANDMARC Indoor Localization Algorithm[J]. 2016, 21(5): 86-89. DOI： 10.15938/j/jhust.2016.05.016.

摘要

针对射频定位LANDMARC算法精度差的问题

提出了一种改进算法

依据最邻近参考标签到阅读器的距离及其接收的信号强度指示RSSI（received signal strength indicator）

通过拉格朗日插值法

得到阅读器到待定位标签的距离

并通过三边定位求得待定位标签的坐标.通过软件仿真分析改进后的算法比原算法的定位精确度提高了65%左右

最小误差由原算法的0.39 m降低为0.015 3 m.实验数据表明

该改进算法在室内定位系统中具有较高的应用价值和广阔的应用前景.

Abstract

The location accuracy is affected by different factors with the LANDMARC algorithm for Radio fre- quency identification （RFID）. This study proposes an improved algorithm to calculate the coordinates of tracking tags. First

according to the distance from the nearest reference tag to the reader and its Received Signal Strength Indicator （ RSSI）

the distance from the reader to the tracking tags can be calculated by using of Lagrange interpo- lation method. Then

the coordinates of tracking tags could be obtained using trilateral position algorithm. The re- sults show that the accuracy of the proposed scheme increases by 65% compared with the original one and the mini- mum error deceases from 0. 39 m to 0. 0153 m. Based on experimental analysis

this scheme is very competitive in the indoor location sensing systems.

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